EFI vs Carbs, This will start a crap storm Options

[ellisor3]

I inherited a pair of Zenith carbs on my six conversion I purchased last year. Yes that is Zenith, not PMO or Weber-Zenith. The set-up was done by Motor Scheister several years ago by the PO (IMG:style_emoticons/default/sheeplove.gif) . I have been working with these for the last month to get them tuned and sync'd. I can not for the life of me get them right. They will idle ok but at acceleration they backfire or vise versa. They were rebuilt at AA back in the summer, but that did not solve the problem. No exhaust leak, new plug and the same problems. Some adjustments don't have any effect at all on the set-up. (IMG:style_emoticons/default/headbang.gif) I am at my wits-end on these damn things.

Anyway my delima is whether I should replace the Carb's with PMO or Weber or simply junk the carb idea and move to EFI. Here are some of my considerations, but wanted some I may have missed.

1.) Cost of Carb PMO's $3500
2.) Cost of EFI ??
3.) Ease of adjusting/reliability-EFI
4.) I live in Florida so high humidity-EFI??
5.) Fuel efficency-EFI
6.) Acceleration-Wash??

Thanks for your input

[naro914]

Someone wiser than me told me once that 90% of carb issues are electrical...

I though he was crazy until I found that the "carb" problems we chased for months turned out to be the coil was cracked, and bad plug wires.

Point being, check all the ignition components and make sure it's timed correctly.

And yes, PMO carbs are wonderful well worth the $$ if you plan to drive it fairly often. We have PMO on Papa Smurf, and have had NO problems since we built it.